Phone jammer circuit | Miscellaneous › Others › Phone jammer circuit This topic has 1 reply, 2 voices, and was last updated 8 years, 6 months ago by Ashutosh Bhatt. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts February 18, 2016 at 6:43 pm #4304 oyedele jonathanParticipant I need an effective 20 meter phone jammer circuit. February 22, 2016 at 11:06 am #13725 Ashutosh BhattParticipant search for such circuit in our garage Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In